[Manishearth]

FWIW Firefox does support WebRTC (which is used for web calling), however sites like Meet sometimes filter for Chrome anyway (IIRC Meet may use Chrome-only proprietary features?). Hangouts is now available on Firefox though, after years of waiting for Google to do it.

[Macha]

How do you have hangouts on firefox again? Is it enterprise hangouts (pre-meet) or consumer hangouts?

[Manishearth]

Might be enterprise.